346 Drs. Dixey and Longstaff’s Observations 
(the last mentioned in the National Collection but un- 
named), and the small dingy bug Agonoscelis puberula, 
Stal. were taken either at or near Buluwayo, or at the 
Matopos; the beetle Pogonobasis sp. (unnamed in the 
British Museum) was taken somewhere in South Rhodesia 
prior to our arrival at the Falls, but the locality cannot be 
now designated, for the notes concerning these insects are 
unfortunately defective. 
THE RAILWAY JOURNEY FROM BULUWAYO TO THE 
VICTORIA FALLS. 
September 11th, 1905. 
Rep BANK SraTIoN (19 miles from Buluwayo). 
We took alongside the train Z'eracolus achine, Cram., a 
male; 7’. antigone, Boisd., a male; and two fine specimens 
of Papilio angolanus, Goeze [ = ? corinneus, Bert.], which 
had probably been disturbed from the drippings of the 
water-tank. 
Saw-Mitts SraTion, near Umguzi (57 miles from 
Buluwayo). 
A male of Belenois mesentina, Cram., was netted, also a 
Noctua flying in the sun. The Red Locust, Schistocerca 
peregrina, Oliv., was abundant. By great exertions we 
succeeded in catching two. 
Gwaal (89 miles from Buluwayo). Lat.19°7’S. Altitude 
3,240 feet. 
Towards evening the train stopped in a stretch of flat, 
bare country beside areedy pond to take in water. A fine 
specimen of Charaves saturnus, Butl. (the only one we saw 
in our travels), was taken flying about a low tree. We 
also took the brilliant cardinal-red dragonfly, Crocothemis 
erythreva, Brulleé. 
Sweeping the rank vegetation by the pond yielded a 
multitude of small insects, amongst them a number of the 
singular fly Diopsis afinis, Adams, which carries its eyes 
and antennae upon long rigid stalks or horns projecting on 
either side of the head. The appearance of these little 
black and red flies forcibly suggests a “ Watkin Range 
Finder ” in miniature, the eyes being so far separated as 
to afford an appreciable base-line; if the imsect were 
